Kentucky

Kentucky is a cave and cliff capital, offering the world's longest cave system, world-class rock climbing, hiking, paddling, and exploring forested gorges and bluegrass country. Mammoth Cave National Park, the Red River Gorge, Cumberland Falls (the 'Niagara of the South'), and the Land Between the Lakes anchor it.

Spring (April–May) brings wildflowers and flowing waterfalls; fall delivers superb color in the gorges. Summer is humid but good for caves (a constant cool ~54°F) and lakes; winters are mild.

Black bears (recovering in the east), elk (one of the largest herds east of the Rockies, reintroduced to the coalfields), white-tailed deer, and abundant bats in the caves inhabit Kentucky.

From the cave-riddled karst and oak-hickory forest of the plateau to the Appalachian highlands and the bluegrass savanna, Kentucky's ecology is shaped by water and limestone.

Kentucky's vast limestone karst created Mammoth Cave — over 426 mapped miles, by far the longest cave system on Earth — while the sandstone of the Cumberland Plateau forms the cliffs, arches, and gorges of the Red River Gorge, and the Appalachian mountains rise in the east (4,145-ft Black Mountain is the high point).

The Shawnee, Cherokee, and other peoples used these lands as hunting grounds. A frontier crossed via the Cumberland Gap, Kentucky became the 15th state in 1792.

World-renowned at the Red River Gorge for sport climbing, plus a deep tradition of cave exploration, river paddling, and Appalachian heritage, define Kentucky's outdoors.

Protecting the Mammoth Cave system and its rare aquatic life, conserving the reintroduced elk herd, and addressing the legacy of mountaintop-removal coal mining in the east are key concerns.

Louisville and Lexington are the main airports; the Red River Gorge and Mammoth Cave are reached by car. Cave tours at Mammoth require advance reservations.

Cave tours require following ranger guidance; the Red River Gorge's cliffs demand climbing skill and care. Flash floods, slick trails, and ticks are warm-season concerns.

State parks charge no general entrance fee, and the Kentucky Department of Fish and Wildlife administers licenses; Mammoth Cave tours require reservations.

Follow ranger guidance on cave tours, and climb the Red River Gorge with proper gear.

Reserve Mammoth Cave tours in advance, climb or hike the Red River Gorge's arches in fall, and visit Cumberland Falls on a full-moon night to see the rare 'moonbow.'

Kentucky borders Tennessee, Virginia, West Virginia, Ohio, Indiana, Illinois, and Missouri, linking Mammoth Cave, the Appalachians, and the Cumberland Gap.